JP2002137939A - Method of fabricating display panel and fabricating device therefor - Google Patents

Method of fabricating display panel and fabricating device therefor

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Publication number
JP2002137939A
JP2002137939A JP2000330219A JP2000330219A JP2002137939A JP 2002137939 A JP2002137939 A JP 2002137939A JP 2000330219 A JP2000330219 A JP 2000330219A JP 2000330219 A JP2000330219 A JP 2000330219A JP 2002137939 A JP2002137939 A JP 2002137939A
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fabricating
display
panel
substrate
method
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JP2000330219A
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Japanese (ja)
Inventor
Yoshiki Sasaki
Hiroyoshi Tanaka
良樹 佐々木
博由 田中
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Abstract

PROBLEM TO BE SOLVED: To provide a method of fabricating a display panel in a simple way and at an improved yield by realizing effective local heating of the substrate without increasing cost of the device or the process.
SOLUTION: This method of fabricating a display panel utilizes an optical heating means providing a distribution of irradiating power resulting in generating a designated distribution of temperature on the surface of the substrate so that the position to be sealed is locally heated to melt the sealing material while the temperature gradient in the vicinity of the sealing position is low- pitched so as to prevent crack of the substrate.
COPYRIGHT: (C)2002,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、表示パネルの製造方法及びその製造装置に関する。 The present invention relates to a method and a manufacturing apparatus manufacturing the display panel.

【0002】 [0002]

【従来の技術】従来から、表示パネルとしてCRT、プラズマディスプレイパネル(以下、PDPという)、電界放出型ディスプレイ(以下、FEDという)あるいは蛍光表示管等が知られている。 Heretofore, CRT as a display panel, a plasma display panel (hereinafter, referred to as PDP), a field emission display (hereinafter, FED hereinafter) or a fluorescent display tube or the like is known. たとえばPDPは図6に示すように表示電極1、誘電体層2、保護層3を形成した第一基板4と、データ電極5、誘電体層6、隔壁7、 For example PDP display electrodes 1 as shown in FIG. 6, a first substrate 4 formed dielectric layer 2, a protective layer 3, the data electrodes 5, the dielectric layer 6, the partition wall 7,
蛍光体11を形成した第二基板8を対向配置して、その周囲を封着部材9にて気密封止して、排気管12を取付けて外囲器10を作成する。 The second substrate 8 to form a phosphor 11 disposed face to face, hermetically sealed around at sealing member 9, to create the envelope 10 is attached to the exhaust pipe 12. 次に排気管12を通じて外囲器10内を真空に排気した後、放電ガスを500To Then it was evacuated to a vacuum envelope 10 through the exhaust pipe 12, the discharge gas 500To
rr(66.5kPa)程度導入し、排気管12を封じて表示パネルを完成する。 rr (66.5kPa) introduced degree, to complete the display panel sealed the exhaust pipe 12.

【0003】ここで封着工程は、第二基板8の周辺に封着部材9を塗布し、封着部材9を乾燥後、第一基板4と対向配置してクリップ等で固定し、電気炉等の加熱手段によって加熱しながら封着部材9を溶融し、2枚の基板を気密封止するものである。 [0003] Here, the sealing step, the sealing member 9 is applied to the periphery of the second substrate 8, after drying the sealing member 9, oppositely disposed to the first substrate 4 is fixed by a clip or the like, an electric furnace melting the sealing member 9 while heating by the heating means and the like, it is the two substrates intended to hermetically seal. これら封着工程は、他の表示パネルについてもほぼ同様である。 These sealing step is substantially the same for the other display panel.

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、従来の表示パネルの製造方法においては、封着をする際に電気炉等を用い、2枚の基板間に封着部材を介在させた状態で加熱する。 [SUMMARY OF THE INVENTION However, in the conventional method of manufacturing a display panel, an electric furnace or the like at the time of the sealing, heated in a state where a sealing member is interposed between the two substrates . そのために本来溶融加熱すべき封着部材以外に、2枚の基板も同時に加熱するために、余分なエネルギーを必要とする課題があった。 Besides inherently melt to be heated sealing member to its, in order to heat also two substrates simultaneously, there is a problem that requires extra energy. また、いったん加熱した2枚の基板を冷却する際には、急激に冷却すると基板が割れることから、ゆっくり冷却する必要があり、多くの時間を有する課題があった。 Further, when cooling the two substrates once heated is rapidly cooled when the fact that the substrate is broken, it is necessary to slow cooling, there is a problem with a lot of time.

【0005】一方、封着工程において封着部材近傍を局所加熱することにより上記課題を解決する方法として特開2000−138030や特開2000−14978 On the other hand, JP 2000-138030 and JP 2000-14978 As a method for solving the above problems by locally heating the vicinity of the sealing member in the sealing step
3が開示されているが、パネル内に加熱手段を形成したり、別途補助的な加熱手段を要したりするためコスト上昇をまねく課題が新たに生じていた。 3 is disclosed, or forming a heating means in the panel, a problem which leads to cost increase for or require an additional auxiliary heating means had occurred newly.

【0006】本発明は、これらの不都合に鑑みて創案されたものであり、封着工程において容易な方法でしかも歩留りを向上できる表示パネルの製造方法とその製造装置を提供することを目的とする。 [0006] The present invention has been made in view of the these disadvantages, and an object thereof is to provide a manufacturing method and manufacturing apparatus of a display panel capable of improving yet yield an easy way in the sealing step .

【0007】 [0007]

【課題を解決するための手段】本発明に係る表示パネルの製造方法は、光学的加熱手段を用い、照射パワーに分布を持たせながら、前記ガラス部材表面に所定の温度分布を生じさせて封着部材を溶融することを特徴とする。 Method of manufacturing a display panel according to the present invention SUMMARY OF THE INVENTION The uses an optical heating means, while giving a distribution to the irradiation power, and causes a predetermined temperature distribution on the glass member surface sealing characterized by melting the Chakubuzai.
これにより封着部材を局所加熱するとともに、その近傍の温度勾配を緩やかにして基板がわれないようにすることができる。 Together locally heated sealing member Thereby, it is possible to ensure that the substrate does not crack in the moderate temperature gradient in the vicinity thereof.

【0008】本発明に係る別の表示パネルの製造方法は、封着部材近傍に光学的加熱手段をスキャンしながら照射し、単位時間当たりのスキャン回数を封着部材形成部の方をその近傍よりも多くして封着部材を溶融することを特徴とする。 [0008] Another method of producing a display panel according to the present invention scans the optical heating means sealing member near with radiation, the number of scans per unit of time than near toward the sealing member forming part characterized by melting the sealing member is at most. これにより、単位時間当たりのスキャン回数が多いところは温度が高く、少ないところは温度を低くでき容易に加熱温度分布を設けることができる。 Thus, when there are many scan number per unit time is high temperature, small place can be provided easily heating temperature distribution can be lowered temperature.

【0009】本発明に係る別の表示パネルの製造方法は、光学的加熱手段を用い、前記光学的加熱手段はガラス部材表面で加熱パワーの分布を有し、封着部材形成部の加熱パワーをその周辺の加熱パワーより大きくして封着部材を溶融することを特徴とする。 [0009] Another method of producing a display panel according to the present invention, using an optical heating means, the optical heating means includes a distribution of heating power in the glass member surface, the heating power of the sealing member forming part characterized by melting the sealing member is greater than the heating power of the periphery thereof. これにより封着部材形成部付近を高温にし、その近傍を徐々に低温化することができ、基板にダメージを与えず、容易に局所加熱ができる。 Accordingly the area around the sealing member forming part to a high temperature, it is possible to gradually lower temperatures the vicinity without damaging the substrate, it can be easily localized heating.

【0010】本発明に係る別の表示パネルの製造方法は、複数の光学的加熱手段を用い、封着部材形成部の加熱パワーをその周辺の加熱パワーより大きくして封着部材を溶融することを特徴とする。 [0010] Another method of producing a display panel according to the present invention uses a plurality of optical heating means, melting the sealing member heating power of the sealing member forming portion is greater than the heating power of the periphery thereof the features. これにより封着部材形成部付近を高温にし、その近傍の温度をコントロールでき適宜低温化することができるため、基板にダメージを与えず、容易に局所加熱ができる。 Accordingly the area around the sealing member forming part to a high temperature, it is possible to appropriately low temperature can control the temperature in the vicinity thereof, without damaging the substrate, it can be easily localized heating.

【0011】本発明に係る表示パネルの製造装置は、複数の光学的加熱手段を1つのユニットにし、ユニットの中のおのおのの光学的加熱手段の配置あるいはパワーを最適化し、所定の温度分布をパネル表面に実現できる製造装置である。 The manufacturing apparatus of a display panel according to the present invention, a plurality of optical heating means in one unit, to optimize the placement or power of each of the optical heating means included in the unit, the panel a predetermined temperature distribution is a manufacturing apparatus that can be realized on the surface. これにより、容易に所定の温度分布をパネル表面上に再現できる。 Accordingly, easily it can be reproduced a predetermined temperature distribution on the panel surface.

【0012】 [0012]

【発明の実施の形態】本発明に係る実施の形態を図面に基づいて説明する。 It will be described with reference DETAILED DESCRIPTION OF THE INVENTION Embodiment of the present invention with reference to the drawings.

【0013】図1は本実施の形態に係る表示パネルの製造方法を示す概略図、図2は本実施の形態に係る別の表示パネルの製造方法を簡略化して示す斜視図、図3、4 [0013] Figure 1 is a schematic view showing a manufacturing method of a display panel according to this embodiment, FIG. 2 is a perspective view schematically showing another method for manufacturing a display panel according to this embodiment, FIGS. 3 and 4
および図5は本実施の形態に係る表示パネルの製造装置を簡略化して示す断面図である。 And FIG. 5 is a sectional view schematically showing a manufacturing apparatus of a display panel according to the present embodiment.

【0014】図1において13は光学的加熱手段であり、図1(a)は封着する表示パネルと光学的加熱手段を示し、図1(b)は光学的加熱手段から表示パネルに熱線である光が照射される際に表示パネル近傍における照度の分布を模式的に示しており、図1(c)は照度に分布を持たして光学的加熱手段13で表示パネルを加熱した際の表示パネルの温度分布を示している。 [0014] 13 in FIG. 1 is an optical heating means, FIG. 1 (a) shows the display panel and the optical heating means for sealing, FIG. 1 (b) in the heat ray to the display panel from the optical heating means the distribution of the illuminance of the display panel near when there light is irradiated shows schematically, FIG. 1 (c) displaying upon heating the display panel by an optical heating means 13 Motashi a distribution in luminance It shows the temperature distribution of the panel.

【0015】封着部材9としてフリットを用いる場合は、封着部材9の形成部付近をフリットの溶融温度以上に加熱する必要がある。 [0015] If a frit is used as the sealing member 9, it is necessary to heat the vicinity of the formation portion of the sealing member 9 above the melting temperature of the frit. 温度はおよそ450℃である。 Temperature is about 450 ℃.
また基板としてガラスを用いることが多く、ソーダライムガラスやあるいは歪点がソーダライムガラスより高く設計されたガラス(例えばPD200 旭硝子社製)を使用する。 Also it is possible to use glass lot, soda lime glass, or strain point uses higher than design glass (e.g. manufactured by PD200 of Asahi Glass Co., Ltd.) soda-lime glass as the substrate. 我々は、これらガラス材料に対して1cmあたりに約20℃の温度差を生じさせると基板に割れが生じやすいことを経験的につかんでいる。 It is grabbed empirically that the resulting temperature difference of about 20 ° C. per 1cm cracks in the substrate is likely to occur for these glass materials. したがって光学的加熱手段13にてその照射パワーを制御しながら、表示パネル表面で封着部材9の近傍を最高450℃まで加熱し、その近傍の温度を1cmあたり20℃を超えないようにする。 Thus while controlling the irradiation power by an optical heating unit 13 is heated by the display panel surface in the vicinity of the sealing member 9 up to 450 ° C., the temperature in the vicinity thereof so as not to exceed 20 ° C. per 1 cm. 封着部材9の形成部近傍で1cmあたり2 Per 1cm in forming the vicinity of the sealing member 9 2
0℃以上の温度差をつけないようにするのは、昇温工程においても、降温工程においても同様に実施する。 0 ℃ to avoid with a temperature difference or more, also in the Atsushi Nobori step, also carried out in the same manner in the temperature lowering step.

【0016】照射パワーの制御の方法は次のようなものがある。 The method of the control of the irradiation power are the following.

【0017】図2において13は光学的加熱手段、14 [0017] 13 in FIG. 2 is an optical heating means 14
は光線をスキャンする手段としてポリゴンミラーを用いている。 It is used polygon mirror as a means for scanning the beam. 光学的加熱手段13は、レーザーでもよく、ランプでも良い。 Optical heating means 13 may be a laser, or a lamp. レーザーはYAGレーザーでも、炭酸ガスレーザーでも、半導体レーザーでも加熱できれば良い。 Laser in YAG laser, in a carbon dioxide gas laser, it can either heated in the semiconductor laser. これら光学的加熱手段13をポリゴンミラー14に照射しポリゴンミラー14を回転させると、所定の幅をスキャンさせることができる。 When irradiated with these optical heating means 13 to the polygon mirror 14 to rotate the polygon mirror 14, it is possible to scan a predetermined width. このときポリゴンミラー14の軸に多少の角度を振れるようにするか、もしくは光学的加熱手段13の角度を多少振れるようにすると、 At this time or to swing some angle to the axis of the polygon mirror 14, or when to slightly swing the angle of the optical heating means 13,
光学的加熱手段13が点、もしくは非常に狭いエリアを照射する際にも、表示パネルを面状に加熱することができる。 Optical heating means 13 is a point, or even when irradiating a very small area, it is possible to heat the display panel in a planar shape. このとき単位時間あたりにスキャンする回数を制御すると、回数が多いほうが高温に、また回数を順次減らすことによって、加熱温度に分布を生じさせることができる。 By controlling the number of times of scanning at this time per unit time, the high temperature A greater number, and by sequentially reducing the number can be generated a distribution in the heating temperature. また、光学的加熱手段13の出力パワーを制御して高温にする必要がある部分をスキャンするときにパワーを上げ、徐々にパワーを下げることによって加熱温度に分布を生じさせることができる。 Further, it is possible to generate a distribution of the heating temperature by increasing the power when scanning a portion that needs to be a high temperature by controlling the output power of the optical heating means 13, gradually decreasing the power. 図2では説明上、 In Figure 2 the description,
1辺のみを光学的加熱手段13により加熱しているが4 While only one side is heated by the optical heating means 13 4
辺同時に加熱することが望ましい。 It is desirable to heat the sides at the same time. その際、光学的加熱手段13とポリゴンミラー14を一つずつ用い表示パネル全面をスキャンしてもよいし、各辺に1組づつの合計4組の光学的加熱手段13とポリゴンミラー14を用いても良い。 At that time, may be scanning the display panel entirely using one by one optical heating means 13 and the polygon mirror 14, using a total of four sets of optical heating means 13 and the polygon mirror 14 of the pair at a time on each side and it may be.

【0018】また、図3に示すようにハロゲンランプユニット15を用いることもできる。 Further, it is also possible to use a halogen lamp unit 15 as shown in FIG.

【0019】ハロゲンランプユニット15はハロゲンランプ16と反射ミラー17からなり、ハロゲンランプ1 The halogen lamp unit 15 consists of a halogen lamp 16 and the reflecting mirror 17, a halogen lamp 1
6から放出された熱線をミラー17で特定の部位に集光することもできるし分散させることもできる。 The heat rays emitted from 6 by the mirror 17 can also be can also to be distributed that is focused on a particular site. これにより、一つのランプによって、表示パネル上に所定の温度分布を設けることができる。 Thus, by one of the lamps may be provided a predetermined temperature distribution on the display panel.

【0020】さらには、図4、図5に示すように、複数のハロゲンランプ16を用いて表示パネル上に温度分布を作ることもできる。 [0020] Further, FIG. 4, as shown in FIG. 5, it is also possible to make the temperature distribution on the display panel using a plurality of halogen lamps 16.

【0021】図4においてはランプに配置に疎な部分と密な部分を設けて表示パネル上に温度分布を作る。 [0021] making the temperature distribution on the display panel provided with a sparse portion and the dense portion in place the lamp in FIG.

【0022】また図5においては出力パワーの異なるランプを設け表示パネル上に温度分布を作る例を示した。 [0022] In FIG. 5 shows an example of making the temperature distribution on the display panel provided with a different lamp of output power.

【0023】このように、光学的加熱手段を用いて、表示パネル上の照射パワーに分布をもたせ、その結果表示パネルの加熱温度に分布を設けることができ、封着部材形成部近傍をその溶融温度まで加熱し、それ以外の部分は基板に割れ等のダメージが生じないように温度分布を形成して封着工程を実施することができる。 [0023] Thus, using the optical heating means, remembering distribution irradiation power on the display panel, its heating temperature of the result display panel can be provided with a distribution, the molten near the sealing member forming part heated to a temperature, the other portion may be carried out sealing process to form a temperature distribution so as not to cause damage such as cracking in the substrate.

【0024】 [0024]

【発明の効果】以上説明したように、本発明に係る表示パネルの製造方法および製造装置は、光学的加熱手段を用いて、基板表面に加熱パワーの分布を生じるようにすることで、基板表面に温度分布を形成することができ、 As described above, according to the present invention, method and apparatus for manufacturing a display panel according to the present invention, using an optical heating means, by the produce the distribution of heating power to the substrate surface, the substrate surface It can form a temperature distribution,
基板にダメージを生じない局所加熱を実現することができる。 It is possible to realize a local heating that does not cause damage to the substrate. これにより、封着工程において基板全体を封着温度に加熱する必要がなく、加熱時のエネルギーを低減できるとともに、装置のコストや表示パネルの部材増加によるコストを上昇をすることもない。 This eliminates the need to heat the entire substrate to the sealing temperature in the sealing step, it is possible to reduce the energy at the time of heating, nor does it increase the cost of members increase in cost and a display panel of the device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本実施の形態に係る表示パネルの製造方法を示す概略図 Schematic diagram showing a method of manufacturing a display panel [1] according to the embodiment

【図2】本実施の形態に係る別の表示パネルの製造方法を簡略化して示す斜視図 Perspective view schematically showing another method for manufacturing a display panel according to Figure 2 this embodiment

【図3】本実施の形態に係る表示パネルの製造装置を簡略化して示す断面図 Sectional view schematically showing a manufacturing apparatus of a display panel according to FIG. 3 embodiment

【図4】本実施の形態に係る表示パネルの製造装置を簡略化して示す断面図 Sectional view schematically showing a manufacturing apparatus of a display panel according to Figure 4 the embodiment

【図5】本実施の形態に係る表示パネルの製造装置を簡略化して示す断面図 Sectional view schematically showing a manufacturing apparatus of a display panel according to FIG. 5 embodiment

【図6】従来の形態に係る表示パネルを簡略化して示す部分断面図 Figure 6 is a partial cross sectional view schematically showing a display panel according to the conventional form

【符号の説明】 DESCRIPTION OF SYMBOLS

13 光学的加熱手段 14 ポリゴンミラー 15 ハロゲンランプユニット 13 optical heating means 14 a polygon mirror 15 halogen lamp unit

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Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、光学的加熱手段を用い、照射パワーに分布を持たせながら前記ガラス部材表面に所定の温度分布を生じさせて封着部材を溶融することを特徴とする表示パネルの製造方法。 1. A method of manufacturing a display panel sealed by a plurality of glass members sealing member the end portion of, using an optical heating means, predetermined on the glass member surface while giving a distribution to the irradiation power method of manufacturing a display panel, characterized in that it causes a temperature distribution to melt the sealing member.
  2. 【請求項2】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、封着部材近傍に光学的加熱手段をスキャンしながら照射し、単位時間当たりのスキャン回数を封着部材形成部の方がその近傍よりも多くして封着部材を溶融することを特徴とする表示パネルの製造方法。 2. A method of manufacturing a display panel sealed by a plurality of glass members sealing member the end portion of the, irradiated while scanning the optical heating means sealing member near the scan frequency per unit time method of manufacturing a display panel toward the sealing member formation portion, characterized in that melting the sealing member is more than the vicinity of.
  3. 【請求項3】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、光学的加熱手段を用い、前記光学的加熱手段はガラス部材表面で加熱パワーの分布を有し、封着部材形成部の加熱パワーをその周辺の加熱パワーより大きくして封着部材を溶融することを特徴とする表示パネルの製造方法。 3. A manufacturing method of a display panel to seal the end portions of the plurality of glass members by sealing member, using an optical heating means, the optical heating means the distribution of heating power in the glass member surface a method of manufacturing a display panel, characterized in that the heating power of the sealing member forming portion is greater than the heating power near its melting sealing member.
  4. 【請求項4】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、複数の光学的加熱手段を用い、封着部材形成部の加熱パワーをその周辺の加熱パワーより大きくして封着部材を溶融することを特徴とする表示パネルの製造方法。 4. A manufacturing method of a display panel to seal the end portions of the plurality of glass members by sealing member, a plurality of optical heating means, the heating of surrounding the heating power of the sealing member forming part method of manufacturing a display panel, characterized by melting the sealing member is greater than the power.
  5. 【請求項5】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、複数の異なるパワーの光学的加熱手段を用い、封着部材形成部に強い加熱パワーの光学的加熱手段を用いその周辺に弱い加熱パワーの光学的加熱手段を用いて温度分布をつくることを特徴とする表示パネルの製造装置。 In the manufacturing method of a display panel that seals the end portion at the sealing member 5. A plurality of glass members, using an optical heating means of a plurality of different power, a strong heating power to the sealing member forming part apparatus for manufacturing a display panel, characterized in that to make the temperature distribution using an optical heating means weak heating power in its periphery with optical heating means.
  6. 【請求項6】 複数のガラス部材の終端部を封着部材にて封止する表示パネルの製造方法において、複数の光学的加熱手段を用い、封着部材形成部近傍により多くの光学的加熱手段を配置して温度分布をつくることを特徴とする表示パネルの製造装置。 6. A manufacturing method of a display panel to seal the end portions of the plurality of glass members by sealing member, a plurality of optical heating means, a number of optical heating means by sealing member formed in the vicinity the arrangement to manufacturing apparatus of a display panel, characterized in that to make the temperature distribution.
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US7407423B2 (en) 2003-04-16 2008-08-05 Corning Incorporated Glass package that is hermetically sealed with a frit and method of fabrication
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JP2006318738A (en) * 2005-05-12 2006-11-24 Hiroshi Kajiyama Device of manufacturing display device
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